Density- and size-dependent mortality in fish early life stages
The importance of survival and growth variations early in life for population dynamics depends on the degrees of compensatory density dependence and size dependence in survival at later life stages. Quantifying density- and size-dependent mortality at different juvenile stages is therefore important...
Published in: | Fish and Fisheries |
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2019
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Online Access: | https://pure.au.dk/portal/en/publications/992a42b1-bc6c-48a4-8a11-e50592de0f09 https://doi.org/10.1111/faf.12391 https://pure.au.dk/ws/files/194913165/faf.12391.pdf |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/992a42b1-bc6c-48a4-8a11-e50592de0f09 2024-09-15T17:52:28+00:00 Density- and size-dependent mortality in fish early life stages Stige, Leif Christian Rogers, Lauren A. Neuheimer, Anna B. Hunsicker, Mary E. Yaragina, Natalia A. Ottersen, Geir Ciannelli, Lorenzo Langangen, Oystein Durant, Joel M. 2019-09 application/pdf https://pure.au.dk/portal/en/publications/992a42b1-bc6c-48a4-8a11-e50592de0f09 https://doi.org/10.1111/faf.12391 https://pure.au.dk/ws/files/194913165/faf.12391.pdf eng eng https://pure.au.dk/portal/en/publications/992a42b1-bc6c-48a4-8a11-e50592de0f09 info:eu-repo/semantics/openAccess Stige , L C , Rogers , L A , Neuheimer , A B , Hunsicker , M E , Yaragina , N A , Ottersen , G , Ciannelli , L , Langangen , O & Durant , J M 2019 , ' Density- and size-dependent mortality in fish early life stages ' , Fish and Fisheries , vol. 20 , no. 5 , pp. 962-976 . https://doi.org/10.1111/faf.12391 Bayesian state-space analysis comparative analysis growth-survival relationships population regulation predation recruitment dynamics POLLOCK THERAGRA-CHALCOGRAMMA HADDOCK MELANOGRAMMUS-AEGLEFINUS CAPELIN MALLOTUS-VILLOSUS NORTHEAST ARCTIC COD EASTERN BERING-SEA LENGTH-AT-AGE WALLEYE POLLOCK CLASS STRENGTH TIME-SERIES GADUS-MORHUA growth–survival relationships article 2019 ftuniaarhuspubl https://doi.org/10.1111/faf.12391 2024-07-01T23:46:33Z The importance of survival and growth variations early in life for population dynamics depends on the degrees of compensatory density dependence and size dependence in survival at later life stages. Quantifying density- and size-dependent mortality at different juvenile stages is therefore important to understand and potentially predict the recruitment to the population. We applied a statistical state-space modelling approach to analyse time series of abundance and mean body size of larval and juvenile fish. The focus was to identify the importance of abundance and body size for growth and survival through successive larval and juvenile age intervals, and to quantify how the dynamics propagate through the early life to influence recruitment. We thus identified both relevant ages and mechanisms (i.e. density dependence and size dependence in survival and growth) linking recruitment variability to early life dynamics. The analysis was conducted on six economically and ecologically important fish populations from cold temperate and sub-arctic marine ecosystems. Our results underscore the importance of size for survival early in life. The comparative analysis suggests that size-dependent mortality and density-dependent growth frequently occur at a transition from pelagic to demersal habitats, which may be linked to competition for suitable habitat. The generality of this hypothesis warrants testing in future research. Article in Journal/Newspaper Arctic cod Bering Sea Gadus morhua Northeast Arctic cod Theragra chalcogramma Aarhus University: Research Fish and Fisheries 20 5 962 976 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
Bayesian state-space analysis comparative analysis growth-survival relationships population regulation predation recruitment dynamics POLLOCK THERAGRA-CHALCOGRAMMA HADDOCK MELANOGRAMMUS-AEGLEFINUS CAPELIN MALLOTUS-VILLOSUS NORTHEAST ARCTIC COD EASTERN BERING-SEA LENGTH-AT-AGE WALLEYE POLLOCK CLASS STRENGTH TIME-SERIES GADUS-MORHUA growth–survival relationships |
spellingShingle |
Bayesian state-space analysis comparative analysis growth-survival relationships population regulation predation recruitment dynamics POLLOCK THERAGRA-CHALCOGRAMMA HADDOCK MELANOGRAMMUS-AEGLEFINUS CAPELIN MALLOTUS-VILLOSUS NORTHEAST ARCTIC COD EASTERN BERING-SEA LENGTH-AT-AGE WALLEYE POLLOCK CLASS STRENGTH TIME-SERIES GADUS-MORHUA growth–survival relationships Stige, Leif Christian Rogers, Lauren A. Neuheimer, Anna B. Hunsicker, Mary E. Yaragina, Natalia A. Ottersen, Geir Ciannelli, Lorenzo Langangen, Oystein Durant, Joel M. Density- and size-dependent mortality in fish early life stages |
topic_facet |
Bayesian state-space analysis comparative analysis growth-survival relationships population regulation predation recruitment dynamics POLLOCK THERAGRA-CHALCOGRAMMA HADDOCK MELANOGRAMMUS-AEGLEFINUS CAPELIN MALLOTUS-VILLOSUS NORTHEAST ARCTIC COD EASTERN BERING-SEA LENGTH-AT-AGE WALLEYE POLLOCK CLASS STRENGTH TIME-SERIES GADUS-MORHUA growth–survival relationships |
description |
The importance of survival and growth variations early in life for population dynamics depends on the degrees of compensatory density dependence and size dependence in survival at later life stages. Quantifying density- and size-dependent mortality at different juvenile stages is therefore important to understand and potentially predict the recruitment to the population. We applied a statistical state-space modelling approach to analyse time series of abundance and mean body size of larval and juvenile fish. The focus was to identify the importance of abundance and body size for growth and survival through successive larval and juvenile age intervals, and to quantify how the dynamics propagate through the early life to influence recruitment. We thus identified both relevant ages and mechanisms (i.e. density dependence and size dependence in survival and growth) linking recruitment variability to early life dynamics. The analysis was conducted on six economically and ecologically important fish populations from cold temperate and sub-arctic marine ecosystems. Our results underscore the importance of size for survival early in life. The comparative analysis suggests that size-dependent mortality and density-dependent growth frequently occur at a transition from pelagic to demersal habitats, which may be linked to competition for suitable habitat. The generality of this hypothesis warrants testing in future research. |
format |
Article in Journal/Newspaper |
author |
Stige, Leif Christian Rogers, Lauren A. Neuheimer, Anna B. Hunsicker, Mary E. Yaragina, Natalia A. Ottersen, Geir Ciannelli, Lorenzo Langangen, Oystein Durant, Joel M. |
author_facet |
Stige, Leif Christian Rogers, Lauren A. Neuheimer, Anna B. Hunsicker, Mary E. Yaragina, Natalia A. Ottersen, Geir Ciannelli, Lorenzo Langangen, Oystein Durant, Joel M. |
author_sort |
Stige, Leif Christian |
title |
Density- and size-dependent mortality in fish early life stages |
title_short |
Density- and size-dependent mortality in fish early life stages |
title_full |
Density- and size-dependent mortality in fish early life stages |
title_fullStr |
Density- and size-dependent mortality in fish early life stages |
title_full_unstemmed |
Density- and size-dependent mortality in fish early life stages |
title_sort |
density- and size-dependent mortality in fish early life stages |
publishDate |
2019 |
url |
https://pure.au.dk/portal/en/publications/992a42b1-bc6c-48a4-8a11-e50592de0f09 https://doi.org/10.1111/faf.12391 https://pure.au.dk/ws/files/194913165/faf.12391.pdf |
genre |
Arctic cod Bering Sea Gadus morhua Northeast Arctic cod Theragra chalcogramma |
genre_facet |
Arctic cod Bering Sea Gadus morhua Northeast Arctic cod Theragra chalcogramma |
op_source |
Stige , L C , Rogers , L A , Neuheimer , A B , Hunsicker , M E , Yaragina , N A , Ottersen , G , Ciannelli , L , Langangen , O & Durant , J M 2019 , ' Density- and size-dependent mortality in fish early life stages ' , Fish and Fisheries , vol. 20 , no. 5 , pp. 962-976 . https://doi.org/10.1111/faf.12391 |
op_relation |
https://pure.au.dk/portal/en/publications/992a42b1-bc6c-48a4-8a11-e50592de0f09 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1111/faf.12391 |
container_title |
Fish and Fisheries |
container_volume |
20 |
container_issue |
5 |
container_start_page |
962 |
op_container_end_page |
976 |
_version_ |
1810294495013502976 |